Synthesis in two words: MANGA DISRESPECT.
Story: 8. Mangaka did an absolutely stunning job on that story. It´s entertaining, catching and innovative. If you like shounen battles combined with ancient history, myths and legends, this is for you. Of course by this I don´t refer to the adaptation.
Art: 1. Just speechless. Warner made the impossible to turn one of the best drawed manga to a simple powerpoint presentation. Astonishingly horrible.
Sound: 2. The perfect opportunity to insert epic OST and rocking OP and ED, was just took to make a mediocre soundtrack, a dull ending and an AC/DC wannabe opening that will pierce through your ears like a drill. In a bad way.
Character: 8. All characters are well introduced, have various personalities, strenghts and weaknesses. Of course, another point not to give to the adaptation.
Enjoyment: 2. This actually transmitted nothing to me. I could be watching Huracán with Damonte as manager - Gimnasia with Messera as manager at 8PM a Monday with 0 shots on target and it would be far more interesting.
Overall: 3. Do me a favour and read that glorious manga. And STAY AWAY FROM HERE.